--limit 0 behavior differs from API

[daviddavis]

Not sure if this is a problem but I noticed that --limit 0 behaviors different than supplying limit=0 when hitting the api:

# returns all objects
$ http :/pulp/api/v3/repositories/file/file/ limit==0

$ pulp file repository list --limit 0
Not all -1 entries were shown.
[]

Also the message seems odd too (Not all -1 entries were shown.)

[mdellweg]

restrict to limits >=1